Home / 13,215.36-19,822.92-3,354.48

Finding the Fourth Proportional to 13,215.36, 19,822.92 and 3,354.48

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Solution

The fourth proportional to 13,215.36, 19,822.92 and 3,354.48 is: 5,031.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,215.36 : 19,822.92 = 3,354.48 : x
  2. Step 2: Convert to fraction form
    13,215.36/19,822.92 = 3,354.48/x
  3. Step 3: Cross multiply
    13,215.36x = 19,822.92 × 3,354.48
  4. Step 4: Simplify right side
    13,215.36x = 66,495,588.68
  5. Step 5: Solve for x
    x = 66,495,588.68/13,215.36
  6. Step 6: Final answer
    x = 5,031.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.